Grain spreader for loading grain bin

ABSTRACT

A method and apparatus to facilitate the loading of a grain bin such that the level in the grain bin increases generally uniformly and the distribution of grain size in the grain bin is generally uniform as well. The method includes redirecting the flow of the grain from the conveyer as it flows into the grain bin. In one embodiment, the apparatus includes an adjustable leveling band for redirecting the grain uniformly to a plurality of radially extending chutes. In one embodiment, the angle of the chutes can also be easily adjusted.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of U.S. patent applicationSer. No. 15/926,300, filed Mar. 20, 2018, entitled GRAIN SPREADER FORLOADING GRAIN BIN, the contents of which are incorporated by referenceherein in their entirety, as if set forth fully herein.

TECHNICAL FIELD

Grain bin filling apparatuses and related methods.

BACKGROUND

Grain bins (silos, grain elevators) are commonly used to store grain.Grain bins are typically tall cylindrical structures and include acentral upper opening for loading. A screw conveyer (e.g., auger) orbelt conveyer is typically used to deliver the grain to the upperopening. Directly feeding grain into the grain bin from the conveyer cancause the grain bins to be loaded in an undesirable manner. For example,one side of the grain bin can be loaded with much more grain thananother side, which can cause an imbalance and stress on the structureof the grain bin. Even if the grain bin is loaded generally uniformlyfrom a radial direction with a mound of grain along the center axis ofthe grain bin, the fines in the grain can be concentrated rather thandistributed. The fines have a different viscosity than the larger grainstructure and tend to concentrate in the center of the grain bin ratherthan being uniformly distributed in the grain bin along with the largergrains. It is desirable to load the grain bin in a manner that resultsin a generally uniform loading of the grain bin vertically and radially,and also results in an even distribution of the size of the grain in thegrain bin.

SUMMARY

The present disclosure provides a method and apparatus to facilitate theloading of a grain bin such that the level in the grain bin increasesgenerally uniformly and the distribution of grain size in the grain binis generally uniform as well. The method includes redirecting the flowof the grain from the conveyer as it flows into the grain bin. In oneembodiment, the apparatus includes an adjustable leveling band forredirecting the grain uniformly to a plurality of radially extendingchutes.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 depicts a grain bin loading apparatus that is not adjusted tocompensate for the direction of loading;

FIG. 2 depicts a grain bin loading method and apparatus that is adjustedto compensate for the direction of loading according to an embodiment ofthe present disclosure;

FIG. 3 is a perspective top view of an embodiment of the grain spreaderof the present disclosure;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a side elevation view of the portion of the grain spreader ofFIG. 3 wherein the leveling band is in a first orientation;

FIG. 6 is a side elevation view of the portion of the grain spreader ofFIG. 3 wherein the leveling band is in a second orientation;

FIG. 7 is a side elevation view of the portion of the grain spreader ofFIG. 3 wherein the leveling band is in a third orientation;

FIG. 8 is a top perspective view of a leveling band of the grainspreader of FIG. 3;

FIG. 9 is a top perspective view of a leveling band hanger assembly ofthe grain spreader of FIG. 3;

FIG. 10 is a side elevation view of the grain spreader of FIG. 3 withthe chutes in a first orientation;

FIG. 11 is a side elevation view of the grain spreader of FIG. 3 withthe chutes in a second orientation;

FIG. 12 is a bottom perspective view of the grain spreader of FIG. 3;and

FIG. 13 is an enlarged portion of FIG. 12.

DETAILED DESCRIPTION

The present disclosure provides a grain spreader 10 that can be adjustedto facilitate even and uniform loading of a grain bin 12. Typically,grain bins are loaded via a central opening 14 at the top of the grainbin 12. A conveyer 16, such as a screw auger, can be used to deliver thegrain to the central opening 14. The grain typically exits the conveyer16 at an angle relative to vertical. In other words, the grain typicallydoes not exit the conveyer 16 in a perfectly downward direction (theflow path includes a lateral component). The grain exiting the conveyer16 is funneled generally downwardly by a hopper 18 that directs thegrain to a leveling band 20. In the depicted embodiment, the levelingband 20 is a cylindrical structure with an open top end and an openbottom end. In the depicted embodiment, the grain flow through andaround the leveling band 20 is downwardly and outwardly through aplurality of downwardly and radially extending chutes 22. The chutes 22include side openings and deflectors adjacent to the opening to directthe grain from the chute downwardly to the bottom of the grain bin 12.Unless certain accommodations are made, the loading of the grain bin 12will generally be non-uniform because the grain entered the grain bin 12with a lateral component (i.e., not perfectly vertically). The lateralcomponent can depend on a number of factors, including the angle of theauger exit and the flow rate of the grain in the auger. To facilitateeven and uniform loading of the grain bin 12, adjustments can be made tothe grain spreader 10.

Referring to FIG. 2, the leveling band 20 is canted to compensate forthe direction of grain flow from the exit 24 of the conveyer 16.Referring to FIGS. 3-7, a particular embodiment of a grain spreader 10according to one embodiment of the present disclosure is shown anddescribed herein in further detail.

In the depicted embodiment, the leveling band 20 is configured such thatit can be raised and lowered relative to the hopper 18 and chute 22along its central axis 31. It is also configured such that its roll 26and pitch 28 can be adjusted.

Referring to FIGS. 5-7, a number of orientations of the leveling band 20is shown. In the depicted embodiment, a roll 26 and pitch 28 adjustmentmechanism is configured to selectively adjust and set the roll 26 andpitch 28 orientation of the leveling band 20. In the depictedembodiment, the roll 26 and pitch 28 adjustment mechanism includes aplurality of rods (e.g., three rods 30, 32, 34) that are connectedbetween the hopper 18 and the leveling band 20. The rods 30, 32, 34 areconfigured to pull and push on the leveling band 20 to change theorientation of the leveling band 20 as needed. In the depictedembodiment, each of the rods 30, 32, 34 is threaded and configured suchthat its effective length can be adjusted by rotating it about alongitudinal axis of the rod. In the depicted embodiment, a nut issecured to the end of the rods 30, 32, 34, which can be engaged with ahand-held driver by an operator located outside of the grain bin 12. Theoperator can change the roll 26 and pitch 28 (the tilt) of the levelingband 20 to adjust so that it distributes the grain onto the chutes 22 inan evenly balanced manner. In the depicted embodiment, the roll 26 andpitch 28 adjustment mechanism includes a hanger assembly 36 (FIG. 9)that threadly interfaces between the rods 30, 32, 34 that extend betweenthe hopper 18 and the leveling band 20. In the depicted embodiment, thehanger assembly 36 includes legs 38, 40, 42 that support a centeringcollar 44 and a plurality of threaded interfaces 46, 48, 50. In thedepicted embodiment, a first upper portion of a threaded rod 30, 32, 34extends through the threaded interface 46, 48, 50 of the hanger assembly36 and second lower end portions of the threaded rod 30, 32, 34 arepivotally attached to a portion of the leveling band 20. Rotation of thethreaded rod 30, 32, 34 in a first direction (e.g., clockwise) extendsthe threaded rod 30, 32, 34 downwardly, thereby lowering the portion ofthe leveling band 20 connected to the second end of the threaded rod 30,32, 34. Conversely, rotation of the threaded rod 30, 32, 34 in a seconddirection (e.g., counter clockwise) that is opposite to the firstdirection, raises the threaded rod 30, 32, 34 upwardly, thereby liftingthe portion of the leveling band 20 connected to the second end of thethreaded rod 30, 32, 34. In the depicted embodiment, there are threethreaded rods 30, 32, 34 that extend between the hopper 18 and theleveling band 20, and they are spaced apart at 120 degrees relative toeach other around the leveling band 20. In the depicted embodiment, thelegs 38, 40, 42 of the hanger assembly 36 are adjustable and can be usedto raise and lower the leveling band 20. However, in the depictedembodiment, the legs 38, 40, 42 are not configured to be adjusted whilegrain is flowing through the system. It should be appreciated that manyalternative configurations are possible. For example, the rods 30, 32,34 could be instead cables. Alternatively, the rods 30, 32, 34 could begas or hydraulic cylinders rather than threaded. The rods 30, 32, 34could also be telescoping pinned structures rather than threaded. Inaddition, alternative embodiments may not have a hanger assembly 36 orthe hanger assembly 36 could be integrated with the hopper 18 as tabsthat extend therefrom that engage the rods 30, 32, 34. Many otheralternative configurations are also possible.

In the depicted embodiment, the plurality of downwardly and radiallyextending longitudinal chutes 22 distribute the grain from the levelingband 20 into a grain bin 12. Each chute 22 includes an upper first endportion and a lower second end portion. In the depicted embodiment, theupper first end portion of each chute 22 is pivotally attached below theleveling band 20. Each chute 22 is supported by a strut 52. In thedepicted embodiment, each strut 52 extends from a center post 54radially outwardly to the chute 22 that it supports. In the depictedembodiment, the grain spreader 10 includes a chute angle adjustmentassembly configured to orientate the chutes 22 at a first angle (e.g.,FIG. 10) relative to vertical or alternatively a second angle (e.g.,FIG. 11) relative to vertical. In the depicted embodiment, the chuteangle adjustment assembly is configured to change the angle of aplurality of chutes 22 simultaneously. In the depicted embodiment, eachof the struts 52 includes a first end that is pivotally connected to acollar 56 that is positioned around the center post 54 and a second endthat is pivotally connected to a portion of the chute 22 that itsupports. The collar 56 is configured to move upwardly and downwardlyalong the center post 54 and be secured to the center post 54 when thedesired angle of the chutes 22 is attained. In the depicted embodiment,the center post 54 includes a pin aperture 58 that is configured toreceive pins that extend through the center post 54 and secures thecollar 56 in place along the center post 54. It should be appreciatedthat many alternative configurations exist for adjusting and setting thedownward angle of the chutes 22. In alternative embodiments, the collar56 could be threaded (e.g., acme threads) on the center post 54 to raiseand lower the chutes 22. Alternatively, the struts 52 themselves couldbe configured to extend and retract. Or the position of the connectionbetween the struts 52 and the chutes 22 could be configured to adjust.Many other alternative configurations are also possible.

The present disclosure also provides a method of evenly distributinggrain while loading a grain bin 12. The method includes the step ofadjusting the tilt of a leveling band 20 to account for the direction ofgrain feeding into the grain bin 12. In the depicted embodiment, thestep of adjusting the tilt is accomplished with the operator locatedprimarily outside of the grain bin 12. In the depicted embodiment, thestep of adjusting the tilt is accomplished with a hand-held driver thatrotates a threaded rod 30, 32, 34, thereby raising and lowering aportion of the leveling band 20 causing it to tilt relative to ahorizontal plane. The method further comprises the step of adjusting thedownward angle of a plurality of chutes 22 located below the levelingband 20 by adjusting the position of a collar 56 that rides along acenter post 54. It should be appreciated that many alternatives to themethod exist. Some alternatives include more steps, others include lesssteps, and yet others include different steps.

It should be appreciated that many other configurations are alsopossible. For example, in an alternative embodiment, elastic members orsprings can be used to bias the leveling band in a downward direction toprovide added stability and limit float and dampen vibrations. Inanother embodiment, an upwardly ending center longitudinal member thatextends along or parallel to the center axis of the leveling band can beused to change roll and pitch in place of cables. In other embodiments,a ball screw configuration can be used to adjust the roll and pitch ofthe leveling band. Many other alternative configurations are alsopossible.

1-17. (canceled)
 18. An assembly, the assembly defining a vertical axis,and comprising: a hopper, the hopper oriented to funnel grain downward;a cylindrical leveling band positioned below and downstream of thehopper; elongate members coupled to the leveling band, the elongatemembers being configured to adjust and set, without rotating theleveling band about the vertical axis: i) a roll of the leveling bandrelative to the hopper about a first horizontal axis; and ii) a pitch ofthe leveling band relative to the hopper about a second horizontalperpendicular to the first horizontal axis.
 19. The assembly of claim18, further comprising a hanger supporting the hopper.
 20. The assemblyof claim 19, wherein the elongate members are coupled to the hanger. 21.The assembly of claim 18, wherein the elongate members include cables.22. The assembly of claim 18, wherein the elongate members include rods.23. The assembly of claim 22, wherein the rods are threaded.
 24. Theassembly of claim 23, wherein the rods are configured to perform theadjust and set by rotation of the rods.
 25. The assembly of claim 18,wherein the elongate members are configured to adjust and set, withoutrotating the leveling band about the vertical axis: iii) a height of theentire leveling band relative to the hopper along the vertical axis. 26.The assembly of claim 18, wherein a center of the leveling band and acenter of the hopper are aligned along the vertical axis; and whereinelongate dimensions of the elongate members are parallel to the verticalaxis.
 27. The assembly of claim 26, wherein each elongate member iscoupled to one of a plurality of structures, the structures beingcoupled to the leveling band and projecting radially away from thecenter of the leveling band.
 28. The assembly of claim 18, furthercomprising a plurality of radially downwardly extending chutespositioned below and downstream of the leveling band.
 29. The assemblyof claim 28, wherein the chutes are configured such that angles of thechutes relative to the vertical axis are adjustable.
 30. An assembly,the assembly defining a vertical axis, and comprising: a hopper, thehopper oriented to funnel grain downward; a cylindrical leveling bandpositioned below and downstream of the hopper; elongate members coupledto the leveling band, the elongate members being configured to adjustand set: i) a roll of the leveling band relative to the hopper about afirst horizontal axis; ii) a pitch of the leveling band relative to thehopper about a second horizontal perpendicular to the first horizontalaxis; and iii) a height of the entire leveling band relative to thehopper along the vertical axis.
 31. The assembly of claim 30, furthercomprising a hanger supporting the hopper.
 32. The assembly of claim 31,wherein the elongate members are coupled to the hanger.
 33. The assemblyof claim 30, wherein the elongate members include cables.
 34. Theassembly of claim 30, wherein the elongate members include threadedrods, the threaded rods being configured to perform the adjust and setby rotation of the threaded rods.
 35. The assembly of claim 30, whereina center of the leveling band and a center of the hopper are alignedalong the vertical axis; and wherein elongate dimensions of the elongatemembers are parallel to the vertical axis.
 36. The assembly of claim 35,wherein each elongate member is coupled to one of a plurality ofstructures, the structures being coupled to the leveling band andprojecting radially away from the center of the leveling band.
 37. Theassembly of claim 30, further comprising a plurality of radiallydownwardly extending chutes positioned below and downstream of theleveling band.